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authorHiral Patel <hiral.patel@qlogic.com>2014-04-11 16:54:34 -0400
committerChristoph Hellwig <hch@lst.de>2014-05-19 13:31:04 +0200
commita018d8ffde82d15fff27f09875bc3c1a704b1a33 (patch)
tree644919352569df19090ec075cf4059a371aaaabf /drivers/scsi/qla2xxx/qla_nx2.c
parent1a5c69bf0c3c157ed438cca4b218aca455b30019 (diff)
downloadlinux-a018d8ffde82d15fff27f09875bc3c1a704b1a33.tar.gz
qla2xxx: Check the QLA8044_CRB_DRV_ACTIVE_INDEX register when we are not the owner of the reset.
Signed-off-by: Hiral Patel <hiral.patel@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_nx2.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_nx2.c120
1 files changed, 57 insertions, 63 deletions
diff --git a/drivers/scsi/qla2xxx/qla_nx2.c b/drivers/scsi/qla2xxx/qla_nx2.c
index e5b4a4092893..da9e3902f219 100644
--- a/drivers/scsi/qla2xxx/qla_nx2.c
+++ b/drivers/scsi/qla2xxx/qla_nx2.c
@@ -1633,7 +1633,7 @@ static void
qla8044_need_reset_handler(struct scsi_qla_host *vha)
{
uint32_t dev_state = 0, drv_state, drv_active;
- unsigned long reset_timeout, dev_init_timeout;
+ unsigned long reset_timeout;
struct qla_hw_data *ha = vha->hw;
ql_log(ql_log_fatal, vha, 0xb0c2,
@@ -1647,84 +1647,78 @@ qla8044_need_reset_handler(struct scsi_qla_host *vha)
qla8044_idc_lock(ha);
}
+ dev_state = qla8044_rd_direct(vha,
+ QLA8044_CRB_DEV_STATE_INDEX);
drv_state = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_STATE_INDEX);
drv_active = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
ql_log(ql_log_info, vha, 0xb0c5,
- "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
- __func__, vha->host_no, drv_state, drv_active);
+ "%s(%ld): drv_state = 0x%x, drv_active = 0x%x dev_state = 0x%x\n",
+ __func__, vha->host_no, drv_state, drv_active, dev_state);
- if (!ha->flags.nic_core_reset_owner) {
- ql_dbg(ql_dbg_p3p, vha, 0xb0c3,
- "%s(%ld): reset acknowledged\n",
- __func__, vha->host_no);
- qla8044_set_rst_ready(vha);
+ qla8044_set_rst_ready(vha);
- /* Non-reset owners ACK Reset and wait for device INIT state
- * as part of Reset Recovery by Reset Owner
- */
- dev_init_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
+ /* wait for 10 seconds for reset ack from all functions */
+ reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
- do {
- if (time_after_eq(jiffies, dev_init_timeout)) {
- ql_log(ql_log_info, vha, 0xb0c4,
- "%s: Non Reset owner: Reset Ack Timeout!\n",
- __func__);
- break;
- }
+ do {
+ if (time_after_eq(jiffies, reset_timeout)) {
+ ql_log(ql_log_info, vha, 0xb0c4,
+ "%s: Function %d: Reset Ack Timeout!, drv_state: 0x%08x, drv_active: 0x%08x\n",
+ __func__, ha->portnum, drv_state, drv_active);
+ break;
+ }
- qla8044_idc_unlock(ha);
- msleep(1000);
- qla8044_idc_lock(ha);
+ qla8044_idc_unlock(ha);
+ msleep(1000);
+ qla8044_idc_lock(ha);
- dev_state = qla8044_rd_direct(vha,
- QLA8044_CRB_DEV_STATE_INDEX);
- } while (((drv_state & drv_active) != drv_active) &&
- (dev_state == QLA8XXX_DEV_NEED_RESET));
+ dev_state = qla8044_rd_direct(vha,
+ QLA8044_CRB_DEV_STATE_INDEX);
+ drv_state = qla8044_rd_direct(vha,
+ QLA8044_CRB_DRV_STATE_INDEX);
+ drv_active = qla8044_rd_direct(vha,
+ QLA8044_CRB_DRV_ACTIVE_INDEX);
+ } while (((drv_state & drv_active) != drv_active) &&
+ (dev_state == QLA8XXX_DEV_NEED_RESET));
+
+ /* Remove IDC participation of functions not acknowledging */
+ if (drv_state != drv_active) {
+ ql_log(ql_log_info, vha, 0xb0c7,
+ "%s(%ld): Function %d turning off drv_active of non-acking function 0x%x\n",
+ __func__, vha->host_no, ha->portnum,
+ (drv_active ^ drv_state));
+ drv_active = drv_active & drv_state;
+ qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX,
+ drv_active);
} else {
- qla8044_set_rst_ready(vha);
-
- /* wait for 10 seconds for reset ack from all functions */
- reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
-
- while ((drv_state & drv_active) != drv_active) {
- if (time_after_eq(jiffies, reset_timeout)) {
- ql_log(ql_log_info, vha, 0xb0c6,
- "%s: RESET TIMEOUT!"
- "drv_state: 0x%08x, drv_active: 0x%08x\n",
- QLA2XXX_DRIVER_NAME, drv_state, drv_active);
- break;
- }
-
- qla8044_idc_unlock(ha);
- msleep(1000);
- qla8044_idc_lock(ha);
-
- drv_state = qla8044_rd_direct(vha,
- QLA8044_CRB_DRV_STATE_INDEX);
- drv_active = qla8044_rd_direct(vha,
- QLA8044_CRB_DRV_ACTIVE_INDEX);
- }
-
- if (drv_state != drv_active) {
- ql_log(ql_log_info, vha, 0xb0c7,
- "%s(%ld): Reset_owner turning off drv_active "
- "of non-acking function 0x%x\n", __func__,
- vha->host_no, (drv_active ^ drv_state));
- drv_active = drv_active & drv_state;
- qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX,
- drv_active);
+ /*
+ * Reset owner should execute reset recovery,
+ * if all functions acknowledged
+ */
+ if ((ha->flags.nic_core_reset_owner) &&
+ (dev_state == QLA8XXX_DEV_NEED_RESET)) {
+ ha->flags.nic_core_reset_owner = 0;
+ qla8044_device_bootstrap(vha);
+ return;
}
+ }
- /*
- * Clear RESET OWNER, will be set at next reset
- * by next RST_OWNER
- */
+ /* Exit if non active function */
+ if (!(drv_active & (1 << ha->portnum))) {
ha->flags.nic_core_reset_owner = 0;
+ return;
+ }
- /* Start Reset Recovery */
+ /*
+ * Execute Reset Recovery if Reset Owner or Function 7
+ * is the only active function
+ */
+ if (ha->flags.nic_core_reset_owner ||
+ ((drv_state & drv_active) == QLA8044_FUN7_ACTIVE_INDEX)) {
+ ha->flags.nic_core_reset_owner = 0;
qla8044_device_bootstrap(vha);
}
}